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9.3

Spot Score

MailboxValidator

MailboxValidator Reviews in June 2025: User Ratings, Pros & Cons

Ensure email delivery with reliable validation.

4.3

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MailboxValidator offers custom pricing plan

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MailboxValidator Reviews & Ratings

4.3

Very Good

Based on 108 ratings & 60 reviews

Rating Distribution

Excellent

(39)

Very Good

(15)

Good

(4)

Poor

(2)

Terible

(0)

Expert's Review

Mailbox Validator has proven to be a must-have service for any website, offering seamless email validation that filters out spam bots, disposable emails, and fake accounts with just a few lines of code. Users have praised its ability to improve email deliverability and reduce bounce rates effectively. The service is lauded for its speed and accuracy, ...Read more

MailboxValidator pros and cons

  • Effective in filtering out invalid and disposable email addresses, improving data quality.

  • Offers a free or fair trial for users to test the service before committing.

  • Provides easy integration with APIs and ready-to-use SDKs for seamless use.

  • Helps reduce bounce rates and associated costs, enhancing email marketing effectiveness.

  • Some users experienced slow customer support response times and limited support for large email lists in a session.

  • In rare cases, the tool may incorrectly identify valid email addresses as invalid, leading to potential errors.

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Showing 21-30 out of 60

SH

Sylvia H

07/01/19

5 out of 5

Check and clean your email list

What do you like best? Mail box validator is very easy to use and very necessary for all organizations that they work with massive email lists. This application helps us to verify each email, in a very effective way improving the reputation of the company or client to promote our brand What do you dislike? The support can be a bit slow in terms of customer service, as I asked for a suggestion and it took more than 4 days to respond, in addition it is limited in terms of number of ...

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UI

User in E-Learning

06/06/19

3.5 out of 5

Good and easy to use

What do you like best? I like it because it's easy to use and it really works good for my clients. But also you can try for free the trial option and give it a try without having to purchase the whole product at once What do you dislike? In the trial mode I have notice that there were invalid mails on the list..but just a free. I think with the full option this may be solved Recommendations to others considering the product: It is good to use at least try the trial option ...

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VC

Violet C

06/04/19

3 out of 5

We use it mainly for the API, which has been integrated into our systems and is working very well.

What do you like best? I really like Mailboxvalidator because it provides a disposable email API that checks if an email is from a disposable email provider and returns the results in JSON or XML format, it also checks and cleans up my email list. It connects to the mail server and checks if the mailbox exists or not and reduces the rebound rate and cost them. What do you dislike? What I dislike about this tool is that we repeatedly tried to verify a large list and it did not ...

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LH

Luke H

05/28/19

4.5 out of 5

MailboxValidator is truly simple to use and very easy to start in your business

What do you like best? What I like most about MailboxValidator is the extraordinary mass list and email service simple to use, it also offers us to connect to the mail server and check if the mailbox exists or not, in order to reduce the bounce rate and costs . What will possibly help you increase the conversion rate and reputation of the sender What do you dislike? What displeased us was that when I had problems with my email lists, I tried to contact the customer service team and ...

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CW

Casper Wu

05/12/19

5 out of 5

Works wonderfully

Works wonderfully. A must-have for prospect research.

KD

Kevin DiCarlo

05/04/19

4 out of 5

So far it is the best service I have…

So far it is the best service I have tried that is out there and there are plans to grow as you grow

CB

Cameron Bradbury

04/25/19

5 out of 5

Good software

Good software. Easily valides emails.

AI

Administrator in Insurance

04/15/19

3.5 out of 5

Great Service to Reduce Invalid emails

What do you like best? Its quick and easy service to filter mass lists for emails. It removes invalid emails easily. What do you dislike? Nothing - the api integration makes this tool a breeze to use. It was simple and quick as well. Recommendations to others considering the product: Great Tool - Definitely worth the cost. What problems are you solving with the product? What benefits have you realized? We are able to use our monthly email allotments from our SMTP ...

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AD

Alexander D

04/12/19

4 out of 5

simple email validator

What do you like best? 1. Have a free plan to test the service on enough email addresses(300, not 10 or something) 2. API is quite simple to use and they have ready to use SDKs What do you dislike? I think "Bulk" plans (on which integrations with email services are available) are quite expensive compared to "API" plans I use. Recommendations to others considering the product: As it has a free plan you can literally test it against other email validators and see if it ...

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PT

Pham Thanh Tuyen

03/31/19

4 out of 5

MailboxValidator is generally good

MailboxValidator is generally good, except for a few cases that it mistook an invalid email address.

Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].